Apparatus for measuring the pitch between adjacent rods in a nuc

Details Apparatus for measuring the pitch between adjacent rods in a nuc Apparatus for measuring the pitch between adjacent rods in a nuc

1983-12-19

1987-02-24

Cangialosi, Salvatore

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

376252, 376258, G21C 1700

Patent

active

046456341

ABSTRACT:
Apparatus for measuring the pitch between adjacent rods in a row of spaced-apart rods in a nuclear fuel assembly at selected points along the length of the rods, wherein the fuel assembly is relatively positioned angularly about its longitudinal center line with respect to a wand positionable to any selected point along the length of the rods carrying two spaced-apart, non-contact proximity sensors is transversely moved along the row of rods. An output signal of unique value is generated when the sensors are equally distant from a rod or adjacent rods. Means are provided for measuring the distance between the occurrence of the alternate unique signals as a measure of the pitch between adjacent rods.

REFERENCES:
patent: 3017621 (1962-01-01), Taborsky et al.
patent: 4036686 (1977-07-01), Weilbacher et al.
patent: 4193843 (1980-03-01), Womack et al.
patent: 4205304 (1980-05-01), Moore
patent: 4464332 (1984-08-01), Boisseuil et al.

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